OE Part Number 55501991. OE AdBlue DEF Diesel Exhaust Fluid Injector, suitable for the following Vauxhall Antara - 2007-2017 - B20DTH. Vauxhall Cascada - 2013-2019 - B20DTH. Vauxhall Insignia A & B - 2009 onwards - B16DTE, D16DTE, D16DTN, B16DDTH, D16DTH, B20DTH, D20DTH, D20DTR.
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